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经营范围
发明名称
ROCK MASS SEALING AGENT
摘要
申请公布号
PL113722(B1)
申请公布日期
1980.12.31
申请号
PL19770199218
申请日期
1977.06.27
申请人
发明人
分类号
B65C;(IPC1-7):C09K7/02
主分类号
B65C
代理机构
代理人
主权项
地址
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